Home / 20,079.24-27,709.53-11,126.85

Finding the Fourth Proportional to 20,079.24, 27,709.53 and 11,126.85

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Solution

The fourth proportional to 20,079.24, 27,709.53 and 11,126.85 is: 15,355.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,079.24 : 27,709.53 = 11,126.85 : x
  2. Step 2: Convert to fraction form
    20,079.24/27,709.53 = 11,126.85/x
  3. Step 3: Cross multiply
    20,079.24x = 27,709.53 × 11,126.85
  4. Step 4: Simplify right side
    20,079.24x = 308,319,783.88
  5. Step 5: Solve for x
    x = 308,319,783.88/20,079.24
  6. Step 6: Final answer
    x = 15,355.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.